tametick / webrl Goto Github PK

The current speed of drawing the dirty tiles is too slow, I've found. It
almost becomes unplayable around 50 dirty tiles, which is about 25 monsters
or a small FoV.

The number of cell (DOM) accesses determines this. I got about the same
speed redrawing the entire table with a single DOM access as I am getting
with the current implementation (with 50 dirty tiles).

There are several ways to reduce DOM access, which kaw and I discussed briefly:

*Row by Row*: You could update the entire row a dirty tile is in, this
reduces the number DOM accesses to a maximum of the table height.

*Tables of Tables*: You could have a 10x5 table each with a 2x2 cell (could
be any numbers, really), all you do is update the table a dirt cell is in,
this reduces the number of DOM accesses to as many small tables, in the
case above, 50. This method might be better with a FoV as only a few tables
will update where the FoV is, Row by Row will update every row the FoV hits.

Creatures and there corresponding controllers need to be removed from the
creatures list so they are no more processed. See "Screen" Class.